Wheel Size

Bicycle wheels come in a wide range of sizes from 12" wheels found on smaller Kids Bikes to larger 29" Mountain Bike and 700c Road Bike wheels. Larger wheels are normally faster and more stable at speed and their larger contact patch improves grip too. Smaller wheels are normally lighter, more maneuverable and have quicker acceleration.

Wheel sizes are defined by the country that first popularized the style of bike that used them - so you'll see some imperial and some metric measurements listed. Wiggle includes the ISO standard in brackets after each for ease of comparison.

SRAM

Product manuals and service guides for all SRAM, Rockshox, Avid and Truvativ products can be found at sram.com or videos can be found on YouTube.
SRAM Corporation was founded in Chicago, IL (USA) in 1987 by six employes with one component, Gripshift Twist Shifters. Today, SRAM’s commitment and growth can be measured by its 1,500 employes, its 150+ cycling products, and it’s 12 facilities worldwide. SRAM has found tremendous growth through innovative products, unparallel customer service, strong sales, and complimentary acquisitions. SRAM acquisitions include Sachs Bicycle Components, purchased in 1997, a leading manufacturer of chains, cassettes and hubs. In 2002 SRAM purchased RockShox, the world’s mountain bike suspension specialist. 2004 brought the purchase of both Avid brakes and Truvativ cranks and components. The addition of these companies has allowed SRAM to grow into the world’s second largest component supplier to the cycling industry. SRAM's core philosophy is to make cycling better. Their commitment is expressed in their local, national and international team and event sponsorship.